CN209522604U - One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system - Google Patents
One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system Download PDFInfo
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Abstract
One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system, including weak lye case, weak lye case connects weak lye feed pump, weak lye feed pump connection preheating table changes, preheating table changes connection the first inlet of gas-liquid separator, and the first liquid outlet of gas-liquid separator connects heating mechanism inlet, and heating mechanism is connected to external steam pipeline, heating mechanism liquid outlet connects the second inlet of gas-liquid separator, and the second liquid outlet of gas-liquid separator connects high alkali liquid discharging pump；Gas-liquid separator gas outlet connect compressor, compressor connect heating mechanism；The utility model is mainly recycling and reusing after purifying the mercerization lye high temperature evaporation of low concentration, weak lye boils after being heated by heating mechanism, the secondary steam of generation carries out gas-liquid separation, constantly heating improves concentration, it is recycled after high alkali liquid discharge, the secondary steam of gas-liquid separator carries out heat recovery recycling by being passed through again in heating mechanism after compressor temperature-pressure.
Description
Technical field
The utility model belongs to waste water technology field, and in particular to one kind is mechanically pressed again for mercerization recycle of alkali liquor
Contracting vapour system.
Background technique
Textile industry is industrial wastewater discharge rich and influential family, is shown according to the mid-90 in last century incomplete statistics data, weaving
Dyeing waste water discharge capacity occupies the 6th in China's every profession and trade, and up to 3,000,000 tons daily.To 21 century, textile industry waste water
The 7.5% of national industrial wastewater statistics discharge amount is accounted for, wastewater emission amount occupies national industrial trade the 5th, and total amount is annual
14.13 hundred million tons, wherein dyeing waste water is about 11.3 hundred million tons (account for textile printing and dyeing industry waste water 80%), accounts for about national industrial wastewater row
High-volume 6%, 4,000,000 tons are about discharged daily.The every processing 100m fabric of printing and dyeing mill can generate 3 ~ 5t waste water, therefore the water money wasted
Source and economic loss formula are immeasurable.Dyeing waste water has that water temperature height, high organic content, coloration are deep, basicity is strong, water quality change
Change it is big, containing a large amount of poisonous and harmful substances, the features such as bio-degradable performance is poor, therefore the cost-effective processing of dyeing waste water
Technology is increasingly becoming a great problem of current environmental protection.
Currently, the treatment process of traditional dyeing waste water substantially has these types: just being arranged after only carrying out simple neutralisation treatment
It puts, the method neutralizes high concentration waste alkali solution using a large amount of acid, increases cost, increase later period sewage treatment load, and
Lye is not recycled；Using in waste water of basic printing and dyeing and flue gas, waste recycling, the method is by waste water of basic printing and dyeing
It is utilized, but since waste water of basic printing and dyeing alkali number is excessive, still there is a large amount of alkali not to be recycled；By simply recycling
Head tank is called in, the lye of various concentration is back to each workshop section of printing and dyeing, although the method has effectively recycled alkali, in water
Impurity content is very high, especially contains various printing and dyeing assistants, cloth frame material in the water after the flushing of mercerising water washing chamber, to final
Printing and dyeing effect, product quality have a great impact.
Therefore, it is necessary to design a kind of above-mentioned to solve for mercerization recycle of alkali liquor mechanical recompression vapour system
The technical issues of scheme.
Summary of the invention
To overcome the deficiencies in the prior art described above, the utility model aim is to provide a kind of for mercerization lye
Recycle mechanical recompression vapour system.
In order to achieve the above objects and other related objects, technical solution provided by the utility model is: a kind of be directed to mercerising
Technique recycle of alkali liquor mechanical recompression vapour system, including weak lye case, the weak lye case connect weak lye feed pump, institute
It states weak lye feed pump connection preheating table to change, the preheating table changes connection the first inlet of gas-liquid separator, the gas-liquid separation
The first liquid outlet of device connects heating mechanism inlet, and the heating mechanism is connected to external steam pipeline, and the heating mechanism goes out liquid
Mouth connection the second inlet of gas-liquid separator, second liquid outlet of gas-liquid separator connect high alkali liquid discharging pump, the concentrated base
Liquid discharging pump connects concentrated base liquid case；Gas-liquid separator gas outlet connect compressor, the compressor connect the heater
Structure.
Preferably, the heating mechanism specifically includes primary heater and secondary heater, the primary heater and institute
Secondary heater is stated to interconnect by forced circulation pump.
Preferably, the primary heater and the secondary heater are all tubular heat exchanger.
Preferably, filter screen is provided in the gas-liquid separator.
Preferably, the heating mechanism connects condensate water pot inlet, and the condensate water pot liquid outlet connection preheating table changes,
The condensate water pot gas outlet connects vacuum pump, and the vacuum pump connects external exhaust gas pipeline.
For the structure feature of above scheme, it is explained as follows:
This programme design one kind be directed to mercerization recycle of alkali liquor mechanical recompression vapour system, mainly pass through by
Recycling and reusing effectively handles dyeing waste water after the mercerization lye high temperature evaporation purification of low concentration, in simultaneity factor also
Using the principle of multiple-effect evaporation, steam caused by weak lye high temperature evaporation in gas-liquid separator is added by compressor
It is discharged into heating mechanism after temperature pressurization and carries out recycling and reusing, so that the energy utilization rate of secondary steam is substantially increased,
Realize the function of the energy and waste water both recycling and reusing.
Heating mechanism includes primary heater and secondary heater, while primary heater and secondary heater pass through pressure
Circulating pump connection can form a heating circulation system, the secondary steaming that heating system is generated using raw steam and evaporation in this way
Steam of the vapour after the heating of mechanical recompression vapour system is as heat source, circulating-heating evaporation, until the material in heater
Until liquid reaches the concentration of suitable reuse, heating mechanism uses vacuum system, can effectively reduce the boiling point of lye, saves energy
Source.
Filter screen is provided in gas-liquid separator, for filtering the particulate contaminant mixed in steam.
Primary heater and secondary heater in heating mechanism are all tubular heat exchangers, they are carried out to weak lye
Condensed water can be generated when heating, heating mechanism is connected to condensate water pot, condensed water is passed through in condensate water pot and is stored, due to cold
The temperature of condensate can play pre-heat effect to weak lye in 50 degrees centigrades, so condensate water pot connection preheating table is changed,
Changing for preheating table and providing condensed water is that weak lye is preheated, and forms the circulatory system of reusing of energy source.
This programme designs as follows for mercerization recycle of alkali liquor mechanical recompression vapour system specific workflow:
The weak lye in weak lye case is first drawn into the preheating of preheating table swap-in row by weak lye feed pump, is preheated to 50 degrees Celsius
Behind left and right, weak lye is passed through in gas-liquid separator.When just starting, need through external steam pipeline to primary heater and two
It is passed through a certain amount of high temperature and high pressure steam in grade heater, then secondary heater heats weak lye, leads to again after heating
Enter primary heater to be heated, realizes hydronic function, be constantly concentrated by evaporation in heating process, generated after evaporation and concentration
High alkali liquid be drawn into concentrated base liquid case by high alkali liquid discharging pump and realize recycling and reusing；It is produced in evaporating concentration process simultaneously
After raw steam can be by compressor temperature-pressure, it is passed through in primary heater and secondary heater and realizes energy recovery benefit
With；And primary heater and secondary heater when being heated to weak lye generated condensed water by storing up in condensate water pot
It deposits, when preheating table, which changes, to be needed to preheat weak lye, the condensed water in condensate water pot is passed through in preheating table changes；Due to light
Lye re-evaporation can generate the foreign gas that can not be condensed when being concentrated, and by entering in condensate water pot after heating mechanism, finally lead to
Vacuum pump is crossed to extract outside discharge system.
The utility model has the following beneficial effects: this programme design is steamed for mercerization recycle of alkali liquor mechanical recompression
Vapour system can fully realize the function to mercerization lye Waste water concentrating recycling and reusing, while also be able to achieve to steaming
The recycling and reusing of these energy of vapour and condensed water, whole system is all very significant in economic benefit and energy-saving effect, tool
There is high practical performance.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram.
In the figures above, weak lye case 1, weak lye feed pump 2, preheating table change 3, gas-liquid separator 4, compressor 5, heating
Mechanism 6, concentrated base liquid case 8, external steam pipeline 9, secondary heater 10, primary heater 11, forces to follow high alkali liquid discharging pump 7
Ring pumps 12, condensate water pot 13, vacuum pump 14, filter screen 15.
Specific embodiment
The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages and effect of the utility model easily.
Referring to Fig. 1, it should be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the utility model can be real
The qualifications applied, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of the utility model can be generated and the purpose that can reach, it should all still fall in the utility model institute
The technology contents of announcement obtain in the range of capable of covering.Meanwhile in this specification it is cited as "upper", "lower", "left", "right",
The term of " centre " and " one " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model,
Its relativeness is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
Embodiment: as shown in Fig. 1, one kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system, including light
Lye tank 1, weak lye case 1 connect weak lye feed pump 2, and weak lye feed pump 2 connects preheating table and changes 3, and preheating table changes 3 connection gas
4 first inlet of liquid/gas separator, 4 first liquid outlet of gas-liquid separator connect 6 inlet of heating mechanism, and heating mechanism 6 is connected to outer
Portion's jet chimney 9,6 liquid outlet of heating mechanism connect 4 second inlet of gas-liquid separator, and 4 second liquid outlet of gas-liquid separator connects
High alkali liquid discharging pump 7 is connect, high alkali liquid discharging pump 7 connects concentrated base liquid case 8；4 gas outlet connect compressor of gas-liquid separator, compressor
Connect heating mechanism 6.
This programme design one kind be directed to mercerization recycle of alkali liquor mechanical recompression vapour system, mainly pass through by
Recycling and reusing effectively handles dyeing waste water, machine in simultaneity factor after the mercerization lye high temperature evaporation purification of low concentration
Tool formula recompresses the principle of steam, and steam caused by weak lye high temperature evaporation in gas-liquid separator 4 is carried out by compressor 5
It is discharged into after temperature-pressure in heating mechanism 6 and carries out recycling and reusing, to substantially increase the using energy source of secondary steam
Rate realizes the function of the energy and waste water both recycling and reusing.
Preferred embodiment is as follows:
Heating mechanism 6 specifically includes primary heater 11 and secondary heater 10, primary heater 11 and secondary heater
10 are interconnected by forced circulation pump 12；Primary heater 11, second level heating and forced circulation pump 12 can form one
Heating circulation system, heating system pass through mechanical recompression vapour system liter using the secondary steam that raw steam and evaporation generate
Steam after temperature is as heat source, circulating-heating evaporation, until the concentration that the feed liquid in heater reaches suitable reuse.
Primary heater 11 and secondary heater 10 are all tubular heat exchanger.
Filter screen 15 is provided in gas-liquid separator 4, for filtering the particulate contaminant mixed in steam.
Heating mechanism 6 connects 13 inlet of condensate water pot, and 13 liquid outlet of condensate water pot connection preheating table changes 3, condensate water pot
13 gas outlets connect vacuum pump 14, and vacuum pump 14 connects external exhaust gas pipeline；Due to 11 He of primary heater in heating mechanism 6
Secondary heater 10 is all tubular heat exchanger, so they can generate condensed water, heater when heating to weak lye
Structure 6 is connected to condensate water pot 13, and condensed water is passed through in condensate water pot 13 and is stored, since the temperature of condensed water is at 50 degrees Celsius
Left and right, pre-heat effect can be played to weak lye, so by condensate water pot 13 connection preheating table change 3, for preheating table change 3 provide it is cold
Condensate is that weak lye is preheated, and forms the circulatory system of reusing of energy source.
The workflow of the present embodiment is as follows:
First the weak lye in weak lye case 1 is drawn into preheating table and changes 3 by weak lye feed pump 2 and is preheated, in advance
After heat to 50 degrees centigrades, weak lye is passed through in gas-liquid separator 4, when the weak lye in gas-liquid separator 4 is to a certain amount of
When, weak lye is passed through secondary heater 10, when just starting, is needed through external steam pipeline 9 to primary heater 11 and two
It is passed through a certain amount of high temperature and high pressure steam in grade heater 10, then secondary heater 10 heats weak lye, after heating
It is passed through primary heater 11 again to be heated, realizes hydronic function, is constantly concentrated by evaporation in heating process, is concentrated by evaporation
The high alkali liquid generated afterwards is drawn into concentrated base liquid case 8 by high alkali liquid discharging pump 7 and realizes recycling and reusing；It is concentrated by evaporation simultaneously
After the steam generated in the process can be by 5 temperature-pressure of compressor, it is passed through in primary heater 11 and secondary heater 10 real
Existing energy recovery utilizes；And primary heater 11 and the secondary heater 10 generated condensed water when heating to weak lye pass through
It is stored in condensate water pot 13, when preheating table, which changes 3, to be needed to preheat weak lye, by the condensed water in condensate water pot 13
Preheating table is passed through to change in 3；Since the foreign gas of entrainment feed liquid can be generated when the concentration of weak lye re-evaporation, pass through heating mechanism 6
Enter in condensate water pot 13 afterwards, is extracted outside discharge system finally by vacuum pump 14.
The utility model has the following beneficial effects: this programme design is steamed for mercerization recycle of alkali liquor mechanical recompression
Vapour system can fully realize the function to mercerization lye Waste water concentrating recycling and reusing, while also be able to achieve to steaming
The recycling and reusing of these energy of vapour and condensed water, whole system is all very significant in economic benefit and energy-saving effect, tool
There is high practical performance.
The above embodiments are only illustrative of the principle and efficacy of the utility model, and not for limitation, this is practical new
Type.Any person skilled in the art can all carry out above-described embodiment under the spirit and scope without prejudice to the utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the revealed essence of the utility model
All equivalent modifications or change completed under mind and technical idea, should be covered by the claim of the utility model.
Claims (5)
1. one kind is directed to mercerization recycle of alkali liquor mechanical recompression vapour system, it is characterised in that: including weak lye case, institute
Weak lye case connection weak lye feed pump is stated, the weak lye feed pump connection preheating table changes, and the preheating table changes connection gas-liquid
The first inlet of separator, first liquid outlet of gas-liquid separator connect heating mechanism inlet, the heating mechanism connection
External steam pipeline, the heating mechanism liquid outlet connect the second inlet of gas-liquid separator, and the gas-liquid separator second goes out
Liquid mouth connects high alkali liquid discharging pump, and the high alkali liquid discharging pump connects concentrated base liquid case；The gas-liquid separator gas outlet connection pressure
Contracting machine, the compressor connect the heating mechanism.
2. according to claim 1 a kind of for mercerization recycle of alkali liquor mechanical recompression vapour system, feature
Be: the heating mechanism specifically includes primary heater and secondary heater, the primary heater and second level heating
Device is interconnected by forced circulation pump.
3. according to claim 2 a kind of for mercerization recycle of alkali liquor mechanical recompression vapour system, feature
Be: the primary heater and the secondary heater are all tubular heat exchanger.
4. according to claim 1 a kind of for mercerization recycle of alkali liquor mechanical recompression vapour system, feature
It is: is provided with filter screen in the gas-liquid separator.
5. according to claim 1 a kind of for mercerization recycle of alkali liquor mechanical recompression vapour system, feature
Be: the heating mechanism connects condensate water pot inlet, and the condensate water pot liquid outlet connection preheating table changes, the condensed water
Tank gas outlet connects vacuum pump, and the vacuum pump connects external exhaust gas pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038259.1U CN209522604U (en) | 2018-12-06 | 2018-12-06 | One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822038259.1U CN209522604U (en) | 2018-12-06 | 2018-12-06 | One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system |
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| CN209522604U true CN209522604U (en) | 2019-10-22 |
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| CN201822038259.1U Active CN209522604U (en) | 2018-12-06 | 2018-12-06 | One kind being directed to mercerization recycle of alkali liquor mechanical recompression vapour system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996074A (en) * | 2021-11-04 | 2022-02-01 | 洛阳市公路事业发展中心 | Alkaline liquor multi-stage efficient concentration system for extracting alkali from red mud |
| CN114459270A (en) * | 2022-02-21 | 2022-05-10 | 重庆博张智能装备有限公司 | Heat recovery method and device in alkali making process |
-
2018
- 2018-12-06 CN CN201822038259.1U patent/CN209522604U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996074A (en) * | 2021-11-04 | 2022-02-01 | 洛阳市公路事业发展中心 | Alkaline liquor multi-stage efficient concentration system for extracting alkali from red mud |
| CN113996074B (en) * | 2021-11-04 | 2023-05-09 | 洛阳市公路事业发展中心 | Multistage high-efficient concentrated system of alkali lye for extracting alkali from red mud |
| CN114459270A (en) * | 2022-02-21 | 2022-05-10 | 重庆博张智能装备有限公司 | Heat recovery method and device in alkali making process |
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